Liability of the employer
12 An employer is vicariously liable for a tort or other actionable wrong committed by an employee in the course of employment. However, it is not every actionable wrong committed by an employee that will give rise to vicarious liability. Whether or not an employer is liable depends upon the scope of the employment. Thus, an employer will not be vicariously liable for a wrongful act of the employee if it is committed by the employee "on a frolic of his own": see Morris v. C.W. Martin & Sons Limited [1966] 1 QB 716 at 733; State of New South Wales v. Lepore [2003] 212 CLR 511 at [41]. Such an act is not within the "scope of the employment": As Gleeson CJ said in Lepore at [40]:
"Not everything that an employee does at work, or during working hours, is sufficiently connected with the duties and responsibilities of the employee to be regarded as within the scope of the employment. And the fact that wrongdoing occurs away from the workplace, or outside normal working hours is not conclusive against liability."
13 It is well settled that an employer is liable for a wrongful act of the employee if the employer has authorised it. An employer may also be liable for unauthorised acts. That is also well settled. The difficulty that arises in the latter case is determining the circumstances in which an employer will be so liable. This was the question under consideration in Lepore. There Gleeson CJ restated, at [42], Salmond's formulation of the principle in Salmond, Law of Torts, namely that:
"…an employer is liable even for unauthorised acts if they are so connected with authorised acts as they may be regarded as modes - although improper modes - of doing them but the employer is not responsible if the unauthorised and wrongful act is not so connected with the authorised act as to be a mode of doing it, but is an independent act."
14 The employer submitted that the case was indistinguishable from the facts in Deatons Pty. Limited v. Flew (1949) 79 CLR 370. In that case, a barmaid threw a glass of beer into the face of the plaintiff. The plaintiff was also hit by the glass. The plaintiff alleged that the barmaid had thrown it at him, the barmaid contending however that in throwing the beer at the plaintiff, the glass slipped out of her hand. There was also a dispute as to whether the plaintiff had spoken to the barmaid "using filthy expressions" and whether he had struck her on the side of the face.
15 The plaintiff sued the barmaid and her employer. The jury found a verdict against both. In the High Court, the employer was found not to be liable as the barmaid was not acting in the course of her employment or doing any act connected with or incidental to the work that she was employed to perform. Latham CJ said at p.379:
"…the act [of the barmaid] was an act of personal resentment and was not in any way performed as on behalf of the employer. It was not done even in supposed furtherance of the interest of the employer … [it] was an independent personal act which was not connected with or incidental in any manner to the work which the barmaid was employed to perform."
16 Dixon CJ at pp.381-382 said:
"… it was an act of passion and resentment done neither in furtherance of the master's interests nor under his express or implied authority nor as an incident to or in consequence of anything the barmaid was employed to do ."
17 McTiernan J put the matter in these terms at p.382:
"… she was a barmaid in the appellant's hotel. In point of law she had an implied authority to do everything that was necessary for the fulfilment of the duties of the position of barmaid in that hotel. … There is no evidence that she had any further authority than that of a barmaid. The responsibility of the appellant for the consequences of the assault depends upon the question whether the barmaid assaulted the plaintiff in the course of fulfilling any duty which the appellant entrusted to her. The assault could not possibly be a manner of fulfilling any [such] duty …"
18 Williams J in his judgment endorsed the statement of principle in Salmond on Torts. His Honour cited the passage as it was dealt with by the Privy Council in Canadian Pacific Railways Co v. Lockhart (1942) AC 591 at 599, where it was stated in these terms:
"… a master, as opposed to the employer of an independent contractor, is liable even for acts which he has not authorised, provided that are so connected with acts that he has authorised they may be regarded as modes - although improper modes - of doing them. In other words, a master is responsible not merely for what he authorises his servant to do but also for the way in which he does it . On the other hand, if the unauthorised and wrongful act of the servant is not so connected with the authorised act as to be a mode of doing it, but is an independent act, the master is not responsible: for in such a case the servant is not acting in the course of his employment but has gone outside of it ." (emphasis added)
19 In the present case, Mr. Wilson requested Mr. Starks to leave the hotel. Although the terms of his employment were not in evidence, there was no issue in the case as to his entitlement to do so. That was part of his job if the circumstances called for it.
20 In his written submissions, counsel for the respondents pointed out that there was no evidence to indicate that Mr. Wilson was required to make any physical contact with Mr. Starks in order to carry out his duties. However, in argument before the Court, he dealt with the argument that force might be used. Section 103(1) of the Liquor Act 1982 provides that a person employed in the position of Mr Wilson "may turn out, or cause to be turned out" persons acting, for example, in a disorderly or drunken way. As a matter of the plain language of the section and common experience, it might be expected that force could be used in such circumstances.
21 Counsel for the respondents accepted that there might be occasions when excessive force was used for which the employer would be liable. He accepted, for example, that if in the course of escorting a customer from the premises a security officer used excessive force, then the employer may well be liable. The employer submitted however, that Mr. Wilson's action in head-butting Mr. Stark was a gratuitous and unprovoked attack which had nothing to do with his duties as a security guard and was not simply an unauthorised mode of doing that for which he was employed. To use the words of Latham CJ in Deatons his action had "nothing at all to do with the performance of the duties of the barmaid".
22 There may of course be questions of degree as to whether an unexpected mode of the execution of an employee's duties will give rise to vicarious liability, as Gleeson CJ pointed out in Lepore at [54]:
"Where acts of physical violence are concerned, the nature and seriousness of the criminal act may be relevant to a judgment as to whether it is to be regarded as a personal, independent act of the perpetrator, or whether it is within the scope of employment. A security guard at business premises who removes a person with unnecessary force may be acting in the course of employment."
23 There are ample examples in the authorities where this has been held to be the case: Gee v. NWQ Management Pty. Limited & Ors. [2002] NSWCA 77 is one. In Lepore, Gleeson CJ at [51] postulated that if, in Deatons, it had been established that part of the barmaid's duties was to keep order in the bar and "[i]f, on the facts, it had been open to regard her conduct as an inappropriate response to disorder, then the jury could properly have held the employer liable in trespass". However, an employer would be less likely to be held vicariously liable if, in addition to unnecessary violence there were other factors such as personal animosity. In such a case, a conclusion might more readily be drawn that an attack was an independent act directed against the victim even though the employee was carrying out duties at the time.
24 In this case, there was no evidence that Mr. Starks acted aggressively towards Mr. Wilson. Counsel for the respondents relied upon this as indicating that the assault was unprovoked and had nothing to do with the employment. However, the fact that there was no evidence of aggression or other behaviour that might have provoked Mr. Wilson's conduct, whilst relevant, is not determinative of whether Mr Wilson was acting in the course of his employment when he assaulted Mr Starks. Although Mr. Wilson's action in head-butting Mr. Starks was unreasonable, uncalled for, and not a usual mode for a security officer to use to persuade a customer to leave hotel premises, the fact is, Mr. Wilson acted in that way in the course of seeking to have Mr. Starks leave the premises. In my opinion, his action was so directly connected with his authorised acts that this case is one that falls on that side of the line that makes the employer vicariously liable.